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Wind Chill Calculator

Use this wind chill calculator entirely in your browser.

ResultWind chill: -12.3 °C

Air temperature: -5 °C; wind: 25 km/h.

Calculations happen locally in your browser.

How to use this calculator

  1. Enter the labelled values and review the live result.
  2. Review the live result and use Copy result when you need to share it.

How the calculation works

The standard Celsius/km/h wind-chill equation applies at winds of at least 4.8 km/h.

Formula

The standard Celsius/km/h wind-chill equation applies at winds of at least 4.8 km/h.

Step-by-step calculation

  1. Enter the labelled values and review the live result.
  2. The standard Celsius/km/h wind-chill equation applies at winds of at least 4.8 km/h.
  3. Check the displayed result, then copy it if needed.

Worked example

-5°C with 25 km/h wind feels substantially colder.

Risk guidance

Frequently asked questions

Does this tool send my inputs anywhere?

No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.

How should I use the result?

Check that the entered units and values match your situation, especially around dates, breaks, and rounding.

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